Edmund thiele



No. 750,502. PATENTED JAN.26,1904.

E. THIELB.

ART OF MAKING ARTIFICIAL APPLICATION FILED JUNE 29,1903.

N0 MODEL.

' M'inesses fizz/en Z01":

WW ZgM mzwams PEYERS col. wmo-umm, wunmsmu, n. cy

Patented January 26, 1904.

PATENT OFFICE.

EDMUND THIELE, OF BARMEN, GERMANY.

ART OF MAKINGARTIFICIAL SILK.

SPECIFICATION forming part of Letters Patent No. 750,502, dated January 26, 1904.

Application filed June 29, 1903. Serial No 163,656. (No model.)

1'0 all whom it may concern:

Be it known that I, EDMUND THIELE, chemical expert, of Barmen, in the German Empire,

have invented a certain new and useful Improvement in the Art of Making Artificial Silk, of which the following is a full, clear, and exact description, and for which I have applied for Letters Patent in Germany, dated December 24:, 1902, and for a design patent in Germany, dated January 15, 1903, and for Letters Patent in Belgium, dated August 8, 1903; in France, dated August 8, 1903; in England, dated July 28, 1903; in Italy, dated August 10, 1903; in Austria, dated August 6, 1903; in Sweden, dated July 30, 1903, and in Switzerland, dated July 30, 1903.

This invention relates to an improvement in the art of making artificial silk; and it consists of an apparatus for effecting the same.

The present apparatus for producing artificial silk is characterized by the formation of the thread being effected in a freely-suspended column of liquid-that is to say, a column of liquid which is supported in a vessel only by the pressure of the air, the said vessel being provided with a narrow opening in the bottom. The effect of this novel arrangement is that the precipitation-bath can be under a low pressure, which can be varied, as desired, accordingly as the column of liquid is higher or lower and according to the speed at which the precipitation-bath flows through, the passage of the thread through the-opening being thus greatly facilitated by the low pressure. Moreover, this invention enables the thread which sinks down in the bath to be removed therefrom without the necessity of altering the direction of the thread, as must be done in the ordinary spinning vessels, which are closed at the bottom. This reversal of the direction of the thread, however, as is practiced in the ordinary spinning vessels by means of guide-rollers, elbow-pipes, and the like, constantly involves breaking of the thread and prevents the detached'and falling ends of the fibers from being rejoined to the body of the thread. This disadvantage is also obviated by the present invention, as the threads after running through the suspended column of liquid pass immediately outside the bath with out any alteration in their direction and can be conveniently further treated -such, for exclosed at the top and open at the bottom, and

the funnel or delivery-pipe d, flexibly attached by the hose-coupling c, and are set by means of the precipitating-bath contained therein.

' In order to renew the precipitation-bath and insure a better production of threads, fresh precipitation liquid is admitted slowly through the supply pipe 6 and discharged again through the opening at the bottom of the funnel-pipe d.

In winding the threads on the rotary drum f the funnel-pipe d, which is flexibly connected with the spinning funnel, enables the threads to be slowly moved to and fro over the drum, and thus uniformly distributed thereon.

Having thus described my invention, what I claim as such, and desire to secure by Letters Patent, is

1. An apparatus for the production of artificial silk consisting in a funnel-shape spinning vessel closed on its top and having a nar row opening at its bottom, and a deliverypipe flexibly connected with the spinning vessel.

2. An apparatus for making artificial silk comprising a spinning vessel, closed on its top and having a narrow opening at its bottom, a

nozzle for the spinning liquid in the upper part of said vessel and a supply-pipe for the precipitation-bath delivering into said vessel.

3. An apparatus for the production of artificial silk comprising a funnel-shape spinning vessel, closed on its top and having a narrow opening at its bottom, a nozzle for the spinning liquid in the upper part of said vessel and a supply-pipe for the precipitationbath delivering into said vessel.

f 4. An apparatus for the precipitation of ar -tificial silk consisting of a funnel-shape spinning vessel, closed at the top and having a nar- In Witness whereof I have hereunto set my row opening at the bottom, a delivery-pipe hand in presence of two W1tnesses. from said vessel, said pipe belng flexibly connected With the spinning Vessel and in the EDMUND THIELE' 5 upper part of which vessel a spinning-nozzle Witnesses:

and a supply-pipe for the precipitation-loath OTTO K6NIG,

are inserted.

J. A. RITTERSHAUS. 

